2.7.- COMPARACION ENTRE LAS CELULAS Recuerda que las celulas procarionticas son celulas primitovas que no tienen organelos rodeados por membranas. Su material nuclear se encuentra flotando en el citoplasma. Las bacterias se clasifican como procariontas. Las celulas eucariontas son las mas avanzadas y contienen organelos rodeados por membranas. Su material nuclear esta rodeado por una membrane nuclear. Las celulas de las plantas‚ los hongos y los animals son eucarionticas. Las celulas de las plantas
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PATTERNS IN NATURE – Summary Notes 1. ORGANISMS ARE MADE OF CELLS THAT HAVE SIMILAR STRUCTURAL CHARACTERISTICS 1.1 Outline the historical development of the cell theory‚ in particular‚ the contributions of Robert Hooke and Robert Brown The Cell Theory states that: All living things are made of cells (Theodor Schwann & Matthias Schleiden) Cells are the basic structural and functional unit of organisms (Theodor Schwann) All cells come from pre-existing cells (Rudolf Virchow) The historical
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synthesis of 4-hydroxy-4‚4-diphenylbutn-2-one was a three week multi-step project. The steps involved protecting the ketone of ethyl acetoacetate with a ketal group‚ followed by preparation and reaction with Grignard‚ then purification by extraction and recrystallization. The yield was 78.5%‚ but there are impurities present suggested by 1H-NMR‚ IR‚ and TLC. However‚ the results do indicate the desired hydroxyketone was formed. Introduction: The purpose of this multi-step lab was to synthesize 4-hydroxy-4
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Lizz Radican Lab 4 2/24/14 The Diels-Alder Reaction: Results and Problems 1.) Table 1: Mass‚ Percent Yield and Melting Points for Diels-Alder Reaction Products. Product Mass (g) Percent Yield Melting Points (°C) Anhydride 8.87 88.2% 164.4-165.8 Dicarboxylic Acid 3.20 71.9% 176.6-180.1 Unknown 1.66 111% 168.7-176.0 2.) See attached calculations. 3.) Table 2: Anhydride Product IR Data: Functional Group or Bond Peak Location(s) (cm-1) Peak Intensity Symmetric
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1.There are three basic types of amino acids: 1) those with electrically charged side chains; 2) those with polar side chains; and 3) those with nonpolar side chains. A) True B) False2.All amino acids share a common “backbone”. Which chemical component (or components) is part of the backbone of an amino acid? A) An amino group (NH2) B) A carboxyl group (COOH) C) A hydrogen atom D) A central carbon atom that is commonly called an α-carbon atom E) All of the above3.Suppose that we link 100
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FlexCon is a company that prides itself on the quality of its pistons. Lately they have been relying on suppliers for major components while manufacturing simple items with relatively small differentiation. By doing this‚ too much of their talent is going to waste leaving them with a big decision of whether to keep outsourcing or to insource. They are already heavily dependent on suppliers for critical components. The cost it takes to insource is greater than the cost to outsource but deciding to
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and implement it in the lab. Configure RIP as a routing protocol. Conditions NYEDGE1 is the hub router. The two remote office routers NYEDGE2 and NYWAN1 connect to NYEDGE1 through serial connections. Each router has a locally attached Ethernet network. The serial line data rates and DTE/DCE settings have already been configured on all three routers. You only need to assign the IP address to the interfaces. Notes The routers are connected directly to each other in this lab and do not actually connect
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ESTIMATION OF 1-4‚ DIOXANE IN SHAMPOOS/ CONDITIONERS/HAIR CREAMS/ SODIUM LAURETH SULFATE BY HEAD SPACE GAS CHROMATOGRAPHIC TECHNIQUE INTRODUCTION 1-4‚ DIOXANE 1‚4-Dioxane is a heterocyclic organic compound‚ classified as an ether. It is a colorless liquid with a faint sweet odor similar to that of diethyl ether. The compound is often called simply Dioxane because the other Dioxane isomers (1‚2- and 1‚3-) are rarely encountered. CHEMISTRY OF 1-4‚ DIOXANE
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Lab 4: Photosynthesis and Chromatography of Spinach Leaves Discussion: The chromatography of the spinach leaves was taken to establish what pigments were present in the chloroplasts of the leaves. The solvent carried and separated the different pigments up the cellulose paper. The solvent moved up the paper because of capillary action because of adhesion of the solvent molecules and the paper. The pigments dissolved in the solvent also were carried up the paper and were separated because
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Physical and Chemical Properties Toby Orme-Lab 4 Solubility or Reaction Substance Name Color Odor Effect of Heat Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver N/A N/A Non soluble Bubbles Basic Hot/fizz N/A Cu Copper N/A Purple then turned black Non soluble N/A N/A N/A N/A Zn Silver N/A N/A Non Soluble N/A N/A Vaporized and fizzed N/A MgO White N/A Omits gas Hazy mix Boiled Rapidly Basic Got hot and fizzed Became thick or pasty CuCO3 Green N/A Turned black Hazy Green Became powdery
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